It is possible to convert you N/A diesel to a Turbo Diesel, but it won't be cheap. The gains you get for the money arn't really worth the cost. The only exception is if you can find a wrecked 300D with a turbo and scavenge the turbo and associated hardware off it. If you need more info please ask. I and doesn't disappoint you too much.
As I understand it the turbo engine is updated with high temp valves and a hardened and/or oversized crank to handle the increased engine torque and combustion temps. I would recommend to just find a decent turbo engine and swap the whole thing. I hear you can find them for as low as $500 sometimes.
Possible, but not likely for him to change on his own without serious counseling.
The answer depends entirely on how the dimensions change. It is possible to change the dimensions without changing the perimeter. It is also possible to change the dimensions without changing the area. (And it is possible to change the area without changing the perimeter.)
No. It is possible to change direction without changing speed. However, it is not possible to change direction without changing velocity.
Yes, a temperature change without a chemical change is possible. A piece of ice can melt into water and then evaporate into water vapor. These changes are all physical changes, and there must be a change in temperature for them to occur.
by definition, turning into the opposite gender is a sex change, so no.
Without being a Moshi Member it's not possible to change the colour of your monster.